GMC 1990 Light Truck Repair Manual page 86

1B4-10 HR-6 AIR CONDITIONING COMPRESSOR
9. One-Piece Seal
A. J 23128-A Seal Remover and Installer
B. J 34614 Shaft Seal Protector
F-06507
Figure 23 — Removing or Installing the Shaft Tip Seal
10. Shaft Seal
Seat O-Ring
J 33026
F-06511
Figure 24 — Removing the Shaft Seal Seat O-Ring Figure 25 — Installing the Seal Seat O-Ring